U.S. Army Corps of Engineers. Waterborne commerce of the United States, cal- 

 endar year 1975, Part 2, waterways and harbors, Gulf Coast, Mississippi 

 River Systems and Antilles. Fort Belvoir, VA: U.S. Army Corps of Engi- 

 neers, Water Resources Support Center; 1977. Available from: Florida 

 Department of Transportation, Tallahassee, FL. 



U.S. Army Corps of Engineers. Project maps book 1979. Mobile, AL: U.S. Army 

 Corps of Engineers; 1979. 



U.S. Army Corps of Engineers. Waterborne commerce of the United States, cal- 

 endar year 1978, Part 2, waterways and harbors, Gulf Coast, Mississippi 

 River Systems and Antilles. Fort Belvoir, VA: U.S. Army Corps of Engi- 

 neers, Water Resources Support Center; 1980. Available from: Florida 

 Department of Transportation, Tallahassee, FL. 



U.S. Department of Commerce, Bureau of the Census. Census of housing: 1950. 

 Vol. 1, Part 2. Washington, DC: U.S. Government Printing Office; 1953a. 



U.S. Department of Commerce, Bureau of the Census. Census of the population: 

 1950. Vol. 2, Part 10. Washington, DC: U.S. Government Printing Office; 

 1953b; 607 p. 



U.S. Department of Commerce, Bureau of the Census. Census of agriculture: 



1954. Vol. 1, Part 18. Washington, DC: U.S. Government Printinq Office; 

 1957a; 666 p. 



U.S. Department of Commerce, Bureau of the Census. City and county data book: 

 1956. Washington, DC: U.S. Government Printing Office; 1957b; 565 p. 



U.S. Department of Commerce, Bureau of the Census. County business patterns 

 1956: Part 6. Washington, DC: U.S. Government Printing Office; 1958; 

 432 p. 



U.S. Department of Commerce, Bureau of the Census. Census of agriculture: 



1959. Vol. 1, Part 29. Washington, DC: U.S. Government Printing Office; 

 1960; 261 p. 



U.S. Department of Commerce, Bureau of the Census. County business patterns 

 1959: Part 6B. Washington, DC: U.S. Government Printing Office; 1961; 

 284 p. 



U.S. Department of Commerce, Bureau of the Census. City and county data book: 

 1962. Washington, DC: U.S. Government Printing Office; 1962a; 669 p. 



U.S. Department of Commerce, Bureau of the Census. Current population reports, 

 series P-25, No. 7. Washington, DC: U.S. Government Printing Office; 

 November 1962b; 90 p. 



U.S. Department of Commerce, Bureau of the Census. Census of housing: 1960. 

 Vol. 1, Part 3. Washington, DC: U.S. Government Printing Office; 1963a. 



U.S. Department of Commerce, Bureau of the Census. Census of the population: 



1960. Vol. 1, part 11. Washington, DC: U.S. Government Printing Office; 

 1963b; 1,112 p. 



368 



